CN213834728U - Ecological dredging mechanism for urban pipe network - Google Patents

Abstract

The utility model relates to the technical field of dredging equipment, and discloses an ecological dredging mechanism for an urban pipe network, which comprises a plurality of hanging and sticking devices and a throwing device for throwing bacteria liquid; the hanging and sticking device comprises a hook hung on the well edge, the hook is used for hanging the throwing device, an adjusting device is arranged between the throwing device and the hook, and the adjusting device is used for adjusting the distance between the hanging and sticking devices; in the device, a throwing device for throwing the microbial inoculum is hung in a drain well through a hanging device; in addition, the hanging and sticking device is provided with the baffle cover, so that the hanging and sticking device can be used as a temporary sewer well cover, and the passing of automobiles cannot be influenced; a driving device is arranged in the throwing device for throwing the microbial inoculum, and the driving device controls the plugging piece to move towards the inner cavity of the connecting pipe along the communication port so as to discharge the bacterial liquid in the throwing device at intervals; the adjusting device can adjust the distance between the hanging and sticking devices according to the sizes of different well mouths so as to be suitable for different well mouths.

Description

Ecological dredging mechanism for urban pipe network

Technical Field

The utility model relates to a pipeline desilting equipment technical field, concretely relates to ecological desilting mechanism for city pipe network.

Background

The urban underground pipeline system bears important responsibilities of flood control, drainage and pollution discharge in the whole urban life and production, and in recent years, rainstorm weather frequently occurring in various provinces and cities is a great test for underground pipeline engineering in municipal engineering construction in various cities. Generally, in public infrastructure construction, in order to facilitate the drainage of rainwater and sewage, a complex drainage pipeline system laid underground is used, and foreign matters are deposited in underground drainage pipelines in the long-term use process.

Therefore, the method for cleaning the deposited foreign matters in the drainage pipeline by using the biological desilting microbial inoculum has the specific implementation mode that: the desilting microbial inoculum is put into a drainage well communicated with an underground drainage pipe, and enters the underground drainage pipe through the drainage well to clean foreign matters deposited in the underground drainage pipe;

but in the process of putting, the following problems exist:

on one hand, as the microbial inoculum needs a certain time for diffusion in water, the microbial inoculum can not be completely thrown in one time, and the microbial inoculum can be thrown in batches at intervals, so that the microbial inoculum is uniformly dissolved in sewage to achieve a better dredging effect;

on the other hand, part of the drainage wells are distributed on the lane, when the microbial inoculum is input, the drainage well cover needs to be opened, then the microbial inoculum is input manually, and in the period, the passing of vehicles is hindered, and the traffic is influenced; in the process, the working strength of workers is also improved.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an ecological desilting mechanism for city pipe network.

In order to achieve the above object, the present invention provides the following technical solutions:

an ecological dredging mechanism for an urban pipe network comprises a plurality of hanging devices and a throwing device for throwing bacteria liquid;

the throwing device comprises a throwing box with a double-layer structure, a bacterial liquid cavity of the throwing box is used for storing bacterial liquid, a connecting pipe is communicated with the lower part of the bacterial liquid cavity, a connecting port of the connecting pipe and the bacterial liquid cavity is provided with a blocking piece for blocking the connecting port, and the blocking piece is moved to the inner cavity of the connecting pipe along the connecting port under the action of a driving device; the connecting pipe is communicated with a liquid drainage cavity through a plurality of discharge holes formed in the circumferential surface of the connecting pipe, and a plurality of throwing holes used for throwing bacterial liquid into the well are formed in the bottom of the liquid drainage cavity.

The driving device comprises a driving piece I arranged at the top end of the bacterial liquid cavity, the output end of the driving piece I is connected with a rubber pressing plate, the rubber pressing plate is matched with the inner wall of the bacterial liquid cavity, and the driving piece I drives the rubber pressing plate to move along the direction of the communication opening;

the connecting pipe is internally provided with a spring, one end of the spring is connected with the plugging piece, and the other end of the spring is fixedly arranged at the bottom of the inner side of the connecting pipe.

The driving device comprises a booster pump, and an air outlet end of the booster pump extends to the top in the bacterial liquid cavity;

the inner side of the connecting pipe is provided with a spring telescopic rod, one end of the spring telescopic rod is fixedly connected with the plugging piece, and the other end of the spring telescopic rod is fixedly arranged at the bottom of the inner side of the connecting pipe.

The driving device comprises a driving piece II arranged in the connecting pipe, and the output end of the driving piece II is fixedly connected with the plugging piece.

And a flow meter is also arranged at the communication port of the connecting pipe and the bacteria liquid cavity.

The hanging and sticking device comprises a hook hung on the well edge, the hook is used for hanging and putting the device, an adjusting device is installed between the putting device and the hook, and the adjusting device is used for adjusting the distance between the hanging and sticking devices.

The hanging and sticking device also comprises a support plate with a semicircular structure; the hooks are of L-shaped structures and are uniformly distributed at the edges of the carrier plates, and the blocking covers are arranged in an installation area formed by the two carrier plates;

the upper surface of the support plate is provided with a plurality of positioning columns, and the blocking cover is provided with positioning holes matched with the positioning columns.

The adjusting device comprises a driving gear meshed with the two racks, the driving gear drives the two racks to move synchronously and in different directions after being driven, and one ends of the racks are connected with the support plate through a connecting frame.

Still include the install bin, drive gear one side is passed through the bearing and is rotated and install in the install bin, drive gear other end fixedly connected with rotates the handle, it runs through the install bin to rotate the handle.

The mounting box at the rack outlet is provided with a threaded through hole, a star-shaped bolt is connected to the threaded through hole in an internal thread mode, and the head of the star-shaped bolt is coated with damping materials.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in the equipment, be equipped with drive arrangement in the input device for putting in the microbial inoculum, remove to the connecting pipe inner chamber along the intercommunication mouth through drive arrangement control shutoff piece to but the realization is with the fungus liquid intermittent type who puts in the device discharges out.

2. In the device, a throwing device for throwing the microbial inoculum is hung in a drain well through a hanging device; in addition, the retaining cover is arranged on the hanging and sticking device, the hanging and sticking device can be used as a temporary sewer well cover, the passing of automobiles cannot be influenced, manual throwing is not needed, and the working strength of workers is also reduced.

3. The utility model discloses in the equipment, hang and paste the device and connect the input device through adjusting device, adjusting device can be according to the size of different well heads, and the distance between pasting the device is hung in the adjustment to be suitable for different well heads.

Drawings

Fig. 1 is a schematic structural diagram I of an ecological dredging mechanism for an urban pipe network.

Fig. 2 is a sectional view of an adjusting device in an ecological dredging mechanism for an urban pipe network.

Fig. 3 is a cross-sectional view of an ecological dredging mechanism for urban pipe network in one embodiment.

Fig. 4 is a sectional view of an ecological dredging mechanism for urban pipe network in the second embodiment.

Fig. 5 is a cross-sectional view of an ecological dredging mechanism for urban pipe network in the third embodiment.

Fig. 6 is a schematic structural view of an ecological dredging mechanism hung in a well for an urban pipe network.

Fig. 7 is a schematic structural view of fig. 6 with a blocking cover attached.

Fig. 8 is a schematic structural diagram II of an ecological dredging mechanism for an urban pipe network.

Fig. 9 is a schematic structural diagram of an ecological dredging mechanism for urban pipe networks after cutting part of pipe sleeves and annular bulges at pipe sleeve openings.

In the drawings: the drainage well 1, the blocking cover 2, the throwing box 3, the bacteria liquid cavity 31, the connecting pipe 32, the blocking piece 311, the connecting pipe 32, the discharge hole 321, the liquid discharge cavity 33, the throwing hole 331, the driving piece I34, the connecting pipe 32, the rubber pressing plate 341, the spring 342, the pushing block 343, the pressurizing pump 35, the spring telescopic rod 36, the driving piece II37, the flowmeter 38, the hook 4, the support plate 5, the positioning column 51, the rack 6, the driving gear 61, the connecting frame 7, the installation box 8, the rotating handle 9, the guiding telescopic rod 10, the telescopic rod 101, the pipe sleeve 102, the round sleeve 103, the ball 104 and the star-shaped bolt 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, fig. 6 and fig. 7, an ecological dredging mechanism for urban pipe network comprises a plurality of hanging devices and throwing devices for throwing bacteria liquid at intervals; the hanging and sticking device comprises a hook 4 hooked on the well edge, the other end of the hook 4 extends into the well 1 and is used for hanging a throwing device, an adjusting device is arranged between the throwing device and the hook 4, and the adjusting device is used for adjusting the distance between the hanging and sticking devices;

the throwing device comprises a throwing box 3 with no less than a double-layer structure, a bacterial liquid cavity 31 of the throwing box 3 is used for storing bacterial liquid, a connecting pipe 32 is communicated below the bacterial liquid cavity 31, a blocking piece 311 used for blocking the communicating port is arranged at the communicating port of the connecting pipe 32 and the bacterial liquid cavity 31, and the blocking piece 311 is moved to the inner cavity of the connecting pipe 32 along the communicating port under the action of a driving device; the connecting pipe 32 is communicated with a liquid discharge cavity 33 through a plurality of discharge holes 321 formed in the circumferential surface of the connecting pipe, and a plurality of throwing holes 331 used for throwing bacterial liquid into the well are formed in the bottom of the liquid discharge cavity 33;

when the plugging member 311 is acted by the driving device and does not cover the communication port between the connection pipe 32 and the bacteria liquid cavity 31, the bacteria liquid in the bacteria liquid cavity 31 enters the connection pipe 32 through the communication port, enters the liquid discharge cavity 33 through a plurality of discharge holes 321 formed in the inner wall of the connection pipe 32, and finally is discharged into the well from the discharge hole 331;

specifically, in the device of the present invention, the driving device includes the following three embodiments,

please refer to fig. 3; in the first embodiment, the driving device includes a driving element I34 disposed at the top end of the bacteria solution cavity 31, the output end of the driving element I34 is connected to a rubber pressing plate 341, the rubber pressing plate 341 is adapted to the inner wall of the bacteria solution cavity 31, and the driving element I34 drives the rubber pressing plate 341 to move along the direction of the communication port;

a spring 342 is arranged inside the connecting pipe 32, one end of the spring 342 is connected with the plugging piece 311, and the other end is fixedly arranged at the bottom of the inner side of the connecting pipe 32;

in this embodiment, the driving element I34 is an electric cylinder, when liquid drainage is not needed, the spring 342 pushes against the blocking piece 311 to cover the communication opening, and the elastic force of the spring 342 is greater than the pressure of the bacteria liquid on the blocking piece 311; when liquid needs to be drained, the output end of the electric cylinder extends out to drive the rubber pressing plate 341 to move along the direction of the communication port, it should be noted that the bacteria liquid chamber 31 has no other openings except the communication port and the liquid injection port, the liquid injection port is used for injecting liquid into the bacteria liquid chamber 31, and after the liquid is injected, the liquid injection port is screwed down by a bolt to prevent air leakage; the inner wall of the bacteria liquid cavity 31 is regular and smooth, preferably, the inner wall is similar to a round tube, and the rubber pressing plate 341 elastically abuts against the inner wall of the bacteria liquid cavity 31; the rubber pressing plate 341 extrudes and pushes the bacteria liquid in the bacteria liquid cavity 31 in the downward movement process, the bacteria liquid pushes the blocking piece 311 covered at the communication port after being extruded, the pushing force is sufficiently larger than the elastic force of the spring 342, the bacteria liquid in the bacteria liquid cavity 31 enters the connecting pipe 32 through the communication port, enters the liquid discharge cavity 33 through a plurality of discharge holes 321 formed in the inner wall of the connecting pipe 32, and finally is thrown into the well from the throwing hole 331;

furthermore, considering that after the bacteria liquid in the bacteria liquid cavity is discharged for a plurality of times, only the stored dosage is too small, and the problem that the plugging piece 311 cannot be pushed when strong pressure is generated after the rubber pressing plate 341 is extruded is solved, the protruding pushing block 343 is installed on the coaxial point of the surface of the rubber pressing plate 341 and the communication port of the equipment, the size of the pushing block 343 is matched with the communication port, and the pushing block 343 is used for pushing the plugging piece 311, so that the residual bacteria liquid can be discharged.

Please refer to fig. 4; in the second embodiment, the driving device comprises a booster pump 35, and an air outlet end of the booster pump 35 extends to the top inside the bacteria liquid cavity 31; a spring expansion rod 36 is arranged inside the connecting pipe 32, one end of the spring expansion rod 36 is fixedly connected with the plugging piece 311, and the other end of the spring expansion rod is fixedly installed at the bottom of the inner side of the connecting pipe 32.

In this embodiment, when liquid drainage is not required, the spring telescopic rod 36 drives the blocking piece 311 to cover the communication opening, and the elastic force of the spring telescopic rod 36 is greater than the pressure of the bacterial liquid on the blocking piece 311; when liquid needs to be drained, the booster pump 35 is started, the air outlet end of the booster pump 35 continuously boosts the bacteria liquid cavity, the pressure of the boosted bacteria liquid on the plugging piece 311 is larger than the elastic force of the spring telescopic rod 36, the bacteria liquid in the bacteria liquid cavity 31 enters the connecting pipe 32 through the communicating port, enters the liquid drainage cavity 33 through the plurality of discharge holes 321 formed in the inner wall of the connecting pipe 32, and finally is thrown into the well from the throwing hole 331.

Referring to fig. 5, in the third embodiment, the driving device includes a driving element II37 disposed inside the connecting tube 32, and an output end of the driving element II37 is fixedly connected to the plugging member 311;

when liquid drainage is not needed, the output end of the driving piece II37 extends out, so that the blocking piece 311 covers the communication opening; when liquid drainage is needed, the output end of the driving piece II37 retracts, the bacterial liquid in the bacterial liquid cavity 31 enters the connecting pipe 32 through the communicating port, enters the liquid drainage cavity 33 through a plurality of discharge holes 321 formed in the inner wall of the connecting pipe 32, and finally is thrown into the well from the throwing hole 331.

Specifically, flow meter 38 is still installed with fungus liquid chamber 31's intercommunication mouth department to connecting pipe 32, still includes the PLC singlechip, the PLC singlechip is connected with flow meter 38 electricity, and the PLC singlechip is connected with driving piece II37 or booster pump 35 or driving piece I34 electricity, and when reaching preset single discharge flow, flow meter 38 gives the PLC singlechip with the signal transmission, and PLC singlechip control driving piece II37 or booster pump 35 or driving piece I34 close.

The hanging and sticking device also comprises a support plate 5 with a semicircular structure; the hooks 4 are of L-shaped structures and are uniformly distributed at the edges of the carrier plates 5, and the baffle covers 2 are arranged in an installation area formed by the two carrier plates 5;

a plurality of positioning columns 51 are arranged on the upper surface of the support plate 5, and positioning holes matched with the positioning columns 51 are formed in the blocking cover 2; the positioning column 51 and the positioning hole are designed to prevent the blocking cover 2 from deviating or turning under the action of external force;

please refer to fig. 1 and fig. 6; a plurality of positioning columns 51 are arranged on the upper surface of the support plate 5, and positioning holes matched with the positioning columns 51 are formed in the blocking cover 2;

specifically, referring to fig. 7, the existing circular manhole cover standard (diameter) is generally 600mm, 700mm, 800mm, in the device of the present invention, the thickness of the support plate 5 with the semicircular structure is 40mm, and according to the existing manhole cover standard of 800mm, the mounting area formed by the two support plates 5 with the semicircular structure is the cover plate with the maximum diameter of 720mm, so as to replace the manhole cover;

furthermore, because the existing well lid standards are generally 600mm, 700mm and 800mm, and the well mouth also corresponds to the above three standards, the equipment hanging device is connected with the throwing device through an adjusting device, and the adjusting device is used for adjusting the distance between the hanging devices; so as to adapt to the three common wellhead standards;

please refer to fig. 2; specifically, the adjusting device comprises a driving gear 61 meshed with the two racks 6 at the same time, the driving gear 61 is driven to drive the two racks 6 to synchronously move in different directions, and one end of each rack 6 is connected with the carrier plate 5 through a connecting frame 7;

specifically, the device further comprises an installation box 8, one side of the driving gear 61 is rotatably installed in the installation box 8 through a bearing, the other end of the driving gear 61 is fixedly connected with a rotating handle 9, and the rotating handle 9 penetrates through the installation box 8; when wrench movement rotates handle 9, drive gear 61 meshes two racks 6 simultaneously, and two racks 6 remove in opposite directions, promote support plate 5 through link 7, increase or reduce the distance between two support plates 5, come the not well head of equidimension of adaptation, it needs to explain, to the well head of different specifications, the fender of adaptation covers 2 and also needs to adopt different models, in this embodiment, keeps off and covers 2 and set up three kinds of models, is including the diameter: 520mm, 620mm, 720mm respectively adapt 600mm, 700mm, the well head that the well lid of 800mm corresponds.

Please refer to fig. 1; further, in order to prevent the rack 6 from moving reversely under the action of external force, a threaded through hole is formed in the top end of the mounting box 8 at the outlet of the rack 6, a star bolt 11 is connected to the threaded through hole in a threaded manner, the head of the star bolt 11 is coated with a damping material, the rack 6 is also coated with the damping material at the position opposite to the star bolt 11, when the driving gear 61 drives the rack 6 to reach the use length, the star bolt 11 twists the head of the star bolt 11 to be in contact with the rack 6, so that the rack 6 is prevented from moving again, and the coated damping material can increase friction force and prevent the rack 6 and the head of the star bolt 11 from slipping;

furthermore, in order to prevent the rack 6 from moving reversely under the action of external force, a through hole corresponding to the twisted star bolt 11 may be formed in the driving rack 6, and the star bolt 11 may be screwed up by a nut after sequentially penetrating through the through hole and the mounting box 8 below the rack 6.

Please refer to fig. 1; further, in order to avoid the rack 6 from shifting in the moving process and avoid the connecting frame 7 from shaking due to only one force point contacting the connecting frame 7, a guiding telescopic rod 10 is arranged in parallel in the horizontal direction of the rack 6, the guiding telescopic rod 10 comprises a telescopic rod 101 and a pipe sleeve 102, and the pipe sleeve 102 is fixedly installed on the inner side of the installation box 8; the telescopic rod 101 is sleeved in the pipe sleeve 102, and the other end of the telescopic rod is fixedly connected with the connecting frame 7;

referring to fig. 8 and 9, further, in order to reduce the friction force generated between the telescopic rod 101 and the pipe sleeve 102 when sliding, a round sleeve 103 is fixedly sleeved outside the telescopic rod 101, mounting holes are uniformly distributed on the surface of the round sleeve 103, balls 104 are interference-assembled in the mounting holes, the round sleeve 103 is sleeved in the pipe sleeve 102, an annular protrusion is arranged at the pipe orifice of the pipe sleeve 102, and the round sleeve 103 is abutted against the annular protrusion;

when the rack 6 drives the connecting frame 7 to move, and the connecting frame 7 drives the telescopic rod 101 to slide along the pipe sleeve 102, the balls 104 on the surface of the round sleeve 103 fixedly sleeved outside the telescopic rod 101 slide along the pipe sleeve 102, so that friction force generated when the telescopic rod 101 slides is reduced, and when the telescopic rod 101 moves to the maximum extension length, the round sleeve 103 touches the annular bulge to limit the telescopic rod 101 to continuously slide along the pipe sleeve 102.

The working principle is as follows:

example 1 working principle:

when the device is used, firstly, according to the specification of a wellhead, a rotating handle 9 is twisted, the rotating handle 9 drives a driving gear 61 to rotate, the driving gear 61 is simultaneously meshed with two racks 6 and drives the two racks 6 to move oppositely, one end of each rack 6 is connected with the support plate 5 through a connecting frame 7, the connecting frame 7 drives a telescopic rod 101 to slide along a pipe sleeve 102 in the moving process so as to realize the guiding effect, when the moving distance meets the use requirement, a star bolt 11 arranged at the outlet of each rack 6 is twisted, the head of each star bolt 11 is abutted against the corresponding rack 6, the racks 6 are prevented from moving again, the friction force can be increased through a coated damping material, and the racks 6 and the heads of the star bolts 11 are prevented from slipping; under the action of the connecting frame 7, the distance between the two carrier plates 5 is changed, then one end of the hook 4 is hung and attached to the outer side of the well edge of the drainage well 1, the putting device is put into the well, and then the matched blocking cover 2 is covered;

the driving piece I34 adopts an electric cylinder, when liquid drainage is not needed, the spring 342 props against the blocking piece 311 to cover the communication opening, and the elastic force of the spring 342 is greater than the pressure of the bacterial liquid on the blocking piece 311; when liquid needs to be drained, the output end of the electric cylinder extends out to drive the rubber pressing plate 341 to move along the direction of the communication port, it should be noted that the bacteria liquid chamber 31 has no other openings except the communication port and the liquid injection port, the liquid injection port is used for injecting liquid into the bacteria liquid chamber 31, and after the liquid is injected, the liquid injection port is screwed down by a bolt to prevent air leakage; the inner wall of the bacteria liquid cavity 31 is regular and smooth, preferably, the inner wall is similar to a round tube, and the rubber pressing plate 341 elastically abuts against the inner wall of the bacteria liquid cavity 31; the rubber pressing plate 341 extrudes and pushes the bacteria liquid in the bacteria liquid cavity 31 in the downward movement process, the bacteria liquid pushes the blocking piece 311 covered at the communication port after being extruded, the pushing force is sufficiently larger than the elastic force of the spring 342, the bacteria liquid in the bacteria liquid cavity 31 enters the connecting pipe 32 through the communication port, enters the liquid discharge cavity 33 through a plurality of discharge holes 321 formed in the inner wall of the connecting pipe 32, and finally is thrown into the well from the throwing hole 331;

the connecting pipe 32 is provided with a flow meter 38 at the communicating port of the bacteria liquid cavity 31, the PLC singlechip is electrically connected with the flow meter 38 and electrically connected with a driving piece I34, when the preset single discharge flow is reached, the flow meter 38 transmits a signal to the PLC singlechip, the PLC singlechip controls the electric cylinder to retract, the spring does not extrude bacteria liquid any more, the spring 342 moves the plugging piece 311 to cover the plugging piece 311 at the communicating port, because the elasticity of the spring 342 is larger than the pressure of the bacteria liquid on the plugging piece 311 when the bacteria liquid in the bacteria liquid cavity 31 is fully loaded, the elasticity of the spring 342 is still larger than the pressure of the bacteria liquid on the plugging piece 311 after a part of the bacteria liquid is released, and the bacteria liquid does not leak.

Considering that after the bacteria liquid in the bacteria liquid cavity is discharged for a plurality of times, only the stored dosage is too small, and the problem that the plugging piece 311 cannot be pushed when strong pressure is generated after the rubber pressing plate 341 is extruded is solved, the convex pushing block 343 is installed on the coaxial point of the surface of the rubber pressing plate 341 and the communication port of the equipment, and the size of the pushing block 343 is matched with the communication port to push the plugging piece 311, so that the residual bacteria liquid can be discharged.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims (10)

1. An ecological dredging mechanism for an urban pipe network is characterized by comprising a plurality of hanging and sticking devices and a throwing device for throwing bacteria liquid;

the feeding device comprises a feeding box (3) with a double-layer structure at least, a bacterial liquid cavity (31) of the feeding box (3) is used for storing bacterial liquid, a connecting pipe (32) is communicated below the bacterial liquid cavity (31), a connecting opening of the connecting pipe (32) and the bacterial liquid cavity (31) is provided with a blocking piece (311) used for blocking the connecting opening, and the blocking piece (311) moves to the inner cavity of the connecting pipe (32) along the connecting opening under the action of a driving device; the connecting pipe (32) is communicated with a liquid discharge cavity (33) through a plurality of discharge holes (321) formed in the circumferential surface of the connecting pipe, and a plurality of throwing holes (331) used for throwing bacterial liquid into the well are formed in the bottom of the liquid discharge cavity (33).

2. The ecological dredging mechanism for the urban pipe network according to claim 1, wherein the driving device comprises a driving member I (34) arranged at the top end of the bacteria liquid cavity (31), the output end of the driving member I (34) is connected with a rubber pressing plate (341), the rubber pressing plate (341) is adapted to the inner wall of the bacteria liquid cavity (31), and the driving member I (34) drives the rubber pressing plate (341) to move along the direction of the communication port;

the connecting pipe (32) is internally provided with a spring (342), one end of the spring (342) is connected with the plugging piece (311), and the other end of the spring (342) is fixedly arranged at the bottom of the inner side of the connecting pipe (32).

3. The ecological dredging mechanism for urban pipe network according to claim 1, wherein the driving device comprises a booster pump (35), an air outlet end of the booster pump (35) extends to the inner top of the bacteria liquid cavity (31);

the connecting pipe (32) is internally provided with a spring telescopic rod (36), one end of the spring telescopic rod (36) is fixedly connected with the plugging piece (311), and the other end of the spring telescopic rod is fixedly arranged at the bottom of the inner side of the connecting pipe (32).

4. An ecological dredging mechanism for urban pipe networks according to claim 1, wherein the driving device comprises a driving member II (37) arranged inside the connecting pipe (32), and the output end of the driving member II (37) is fixedly connected with the plugging member (311).

5. The ecological dredging mechanism for the urban pipe network according to claim 1, wherein a flow meter (38) is further installed at a communication port of the connecting pipe (32) and the bacteria liquid cavity (31).

6. The ecological dredging mechanism for the urban pipe network according to claim 1, wherein the hanging device comprises a hook (4) hooked on a well edge, the hook (4) is used for hanging a throwing device, an adjusting device is installed between the throwing device and the hook (4), and the adjusting device is used for adjusting the distance between the hanging devices.

7. The ecological dredging mechanism for urban pipe networks according to claim 6, wherein the hanging device further comprises a support plate (5) with a semicircular structure; the hooks (4) are of L-shaped structures and are uniformly distributed at the edges of the carrier plates (5), and the blocking covers (2) are arranged in an installation area formed by the two carrier plates (5);

the upper surface of the support plate (5) is provided with a plurality of positioning columns (51), and the blocking cover (2) is provided with positioning holes matched with the positioning columns (51).

8. The ecological dredging mechanism for urban pipe networks according to claim 7, wherein the adjusting device comprises a driving gear (61) meshed with the two racks (6) at the same time, the driving gear (61) is driven to drive the two racks (6) to synchronously move in different directions, and one end of each rack (6) is connected with the carrier plate (5) through a connecting frame (7).

9. The ecological dredging mechanism for the urban pipe network according to claim 8, further comprising a mounting box (8), wherein one side of the driving gear (61) is rotatably mounted in the mounting box (8) through a bearing, the other end of the driving gear (61) is fixedly connected with a rotating handle (9), and the rotating handle (9) penetrates through the mounting box (8).

10. The ecological dredging mechanism for urban pipe networks according to claim 9, wherein a threaded through hole is formed in the mounting box (8) at the outlet of the rack (6), a star bolt (11) is connected to the threaded through hole in a threaded manner, and the head of the star bolt (11) is coated with a damping material.

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